The Corsairs of Umbar were sea-raiders and pirates of the Haven of Umbar. Umbar was an old Númenórean haven settled by the "King's Men" or Black Númenóreans,[1] a proud faction loyal to the King and opposed to the divine authority of the Valar. The corsairs were recognizable by their red sails, adorned with a black star or eye.[2]

After the Downfall of Númenor, the Umbar settlers further descended into evil, and were called the Black Númenóreans. They took to pillaging and piracy along the coasts of Gondor. During the Kin-strife, the defeated rebels of Gondor fled to Umbar — by this time Umbar became the hated enemy of Gondor.[1]

The Corsairs were led by four brothers who falsely call themselves the Heirs of Castamir. These were Azruthor, Dolgimil, Azgarzôr, and the eldest Balakhôr the Scourge. The player negotiated with a Corsair named Jajax, who ended up siding with the player against the Heirs and their followers.